Residual value of 15N-labelled fertilizer applied to a maize-cowpea intercropping system
作者： D.D. Patra , M.S. Sachdev , B.V. Subbiah
DOI: 10.1007/BF00257764
关键词:
摘要: We studied the residual effect of 15N-labelled fertilizer N, applied to a maize-cowpea intercropping system, on succeeding crops maize/wheat and its balance in crop sequence, greenhouse field experiments. The N uptake by was always higher following sole or intercropped cowpea. Under conditions with first-crop maize, wheat 5.8% after it 7.8%.
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